Method test_ring_buffer_empty_operations

test/test_ring_buffer.py:374–398

Test ring buffer operations on empty buffer

(self)

        assert isinstance(collected_data, list), "Callback should collect data in list"

    def test_ring_buffer_empty_operations(self):
        """Test ring buffer operations on empty buffer"""
        ring_name = "/test/ring_buffer_empty"

        # Step 1: Create ring buffer but don't generate data
        cli_cmd = (
            f"test stats ring-buffer-gen {ring_name} 0 {INTERVAL_USEC} {RING_SIZE}"
        )
        result = self.vapi.cli(cli_cmd)
        assert "Generated" in result, f"CLI failed: {result}"

        # Step 2: Get ring buffer
        ring_buffer = self.statistics.get_ring_buffer(f"{ring_name}")

        # Step 3: Test empty consume
        data = ring_buffer.consume_data(thread_index=0)
        assert data == [], "Empty buffer should return empty list"

        # Step 4: Test empty batch consume
        data = ring_buffer.consume_data_batch(thread_index=0)
        assert data == [], "Empty buffer should return empty list for batch"

        # Step 5: Test empty poll
        data = ring_buffer.poll_for_data(thread_index=0, timeout=0.1)
        assert data == [], "Empty buffer should return empty list for poll"

    def test_ring_buffer_prefetch_parameter(self):
        """Test prefetch parameter in batch consume"""